Nordson EFD, East Providence, RI, introduces the new ValveMate™ 9000, state-of-the-art precision valve controller. The intricate microprocessor circuitry ensures the dispensing of precise, accurate, and repeatable amounts of the adhesives, lubricants, and other assembly fluids used in advanced products, such as medical devices and portable electronics. It incorporates such advanced features as an Auto-Increment mode that adjusts dispensing parameters after a certain number of shots or a specific elapsed time.

The ValveMate 9000 also offers independent dual-valve control programming, each with 24 watt temperature controllers for J-type thermocouples. Each channel can drive a remote high-speed solenoid valve up to 500Hz. To avoid high voltage damaging the dispense system, the unit incorporates a unique spike-and-hold functionality, which allows the controller to spike the voltage for a specified time and then throttle the voltage down to a hold voltage.

Two electronic pressure regulators provide stability in the fluid reservoir by maintaining consistent dispensing with full-to-empty pressure control. This allows the system to compensate for periodically changing conditions, such as fluid viscosity changes, and can be used to alter the dispensing patterns and create deposits of different sizes.

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Medical Design Briefs Magazine

This article first appeared in the May, 2014 issue of Medical Design Briefs Magazine.

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